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通过对美国山核桃金华、绍兴、山站2号、长林13号4个品种近20年的引种试验,认为美国山核桃适宜云南中亚热带地区生长,可作为新经济林树种发展应用。经过对引入品种长期系统的物候观察,树体生长量、丰产性的测定以及室内考种、坚果含油率分析等,认为绍兴、金华2个美国山核桃品种结实率高,丰产性能好,25年生单株产量分别达到44.4 kg和39.2 kg,且品质佳,可在生产上推广应用。为云南发展美国山核桃提供了科学依据。
Through the introduction test of four varieties of the United States Pecan Jinhua, Shaoxing, Shanshan 2, and Changlin 13 for nearly 20 years, it is concluded that Pecan is suitable for the growth of Yunnan subtropical region and can be used as a new economic forest tree species. According to the long-term phenology observation, the growth of tree body, the determination of high yield and the test of indoor test and the analysis of the oil content of nuts in the long-term system of introduced varieties, the two American pecan cultivars in Shaoxing and Jinhua are characterized by high seed-setting rate and good yield, Plant yield reached 44.4 kg and 39.2 kg, respectively, and good quality, can be popularized in production. It provided a scientific basis for the development of pecan in Yunnan.